<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>外部样式</title>
    <link rel="stylesheet" href="../CSS/index.css">
</head>

<body>
    <div>我是一个div标签</div>
    <p>我是一个p标签</p>
    <div>我是一个div标签</div>
    <p>我是一个p标签</p>
</body>

</html>